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S32 SDK
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Example application showing FlexIO I2S driver usage
The purpose of this demo application is to show you the usage of the FlexIO I2S driver found on the S32K144 SoC using S32 SDK API.
The application uses FlexIO I2S driver to make a data transfer of a defined size. The slave device for this example is a second FlexIO I2S driver using the same FlexIO instance, which is configured to act as a bus slave. The slave and master buffers will be checked after each transfer by the application, RED or GREEN led will be lit depending on the check result.
The MASTER I2S driver is configured to use DMA for transfers.
Data size is configured by TRANSFER_SIZE define, by default is configured to be 2 KB.
The run the example you will need to have the following items:
The following boards are supported by this application:
The following connections must be done to for this example application to work:
PIN FUNCTION | S32K144EVB-Q100 | S32K144-MB |
---|---|---|
FLEXIO_MASTER SCK (PTA0) | J5.5 - J6.19 | J9.31 - J9.23 |
FLEXIO_MASTER WS (PTA1) | J5.7 - J6.17 | J9.30 - J9.24 |
FLEXIO_MASTER TX (PTD0) | J6.1 - J1.3 | J12.31 - J9.30 |
FLEXIO_MASTER RX (PTA11) | J1.2 - J1.1 | J9.22 - J9.31 |
FLEXIO_SLAVE SCK (PTA8) | J5.5 - J6.19 | J9.31 - J9.23 |
FLEXIO_SLAVE WS (PTA9) | J5.7 - J6.17 | J9.30 - J9.24 |
FLEXIO_SLAVE TX (PTA2) | J2.6 - J1.3 | J9.22 - J9.30 |
FLEXIO_SLAVE RX (PTA3) | J1.2 - J1.1 | J12.31 - J9.31 |
After opening S32 Design Studio, go to File -> New S32DS Project From... and select flexio_i2s_s32k144. Then click on Finish.
The project should now be copied into you current workspace.
First go to Project Explorer View in S32 DS and select the current project(flexio_i2s_s32k144). Then go to Project and click on Generate Processor Expert Code
Wait for the code generation to be completed before continuing to the next step.
Select the configuration to be built FLASH (Debug_FLASH) or RAM (Debug_RAM) by left clicking on the downward arrow corresponding to the build button(. Wait for the build action to be completed before continuing to the next step.
Go to Run and select Debug Configurations. There will be four debug configurations for this project:
Configuration Name | Description |
---|---|
flexio_i2s_s32k144 Debug_RAM Jlink | Debug the RAM configuration using Segger Jlink debuggers |
flexio_i2s_s32k144 Debug_FLASH Jlink | Debug the FLASH configuration using Segger Jlink debuggers |
flexio_i2s_s32k144 Debug_RAM PEMicro | Debug the RAM configuration using PEMicro debuggers |
flexio_i2s_s32k144 Debug_FLASH PEMicro | Debug the FLASH configuration using PEMicro debuggers |
Select the desired debug configuration and click on Launch. Now the perspective will change to the Debug Perspective.
Use the controls to control the program flow.